National Geographic Society, WQED (Television station : Pittsburg, Pa.), Jampel, B., Kane, D. B., & Skinner, T. (1988). Mysteries of mankind [videorecording]. The Society Columbia Tristar Home Video [distributor].
Citazione stile Chigago Style (17a edizione)National Geographic Society, Pa.) WQED (Television station : Pittsburg, Barbara Jampel, Dennis B. Kane, e Thomas Skinner. Mysteries of Mankind [videorecording]. [Washington, D.C.]: The Society Columbia Tristar Home Video [distributor], 1988.
Citatione MLA (9a ed.)National Geographic Society, et al. Mysteries of Mankind [videorecording]. The Society Columbia Tristar Home Video [distributor], 1988.
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